isTypeSupported static method
The MediaSource.isTypeSupported() static method returns a boolean
value which is true if the given MIME type and (optional) codec are
likely to be supported by the current .
That is, if it can successfully create SourceBuffer objects for that
media type.
If the returned value is false, then the user agent is certain that it
cannot access media of the specified format.
Implementation
external static bool isTypeSupported(String type);